This article deals with a PEMFC (proton exchange membrane fuel cell) electrical model based on a 1D analog representation of mass transport phenomena, and taking into account the influence of gas supply conditions on fuel cell voltage. By using an electrical analogy to describe transport of...

The study examined the effects of various trade policy instruments such as tariff, import restrictions, outright ban on rice import and other determinants on the import demand for rice in Nigeria between 1960 and 2007. Adopting a dynamic modeling approach, the unit root test of the series used...

Purpose The purpose of this study is to achieve the dynamic model of outsourcing success factors in project-based companies. Design/methodology/approach This study is descriptive-survey in terms of method and practical in terms of purpose. To achieve the dynamic model of outsourcing success,...

Although much academic and policy discussion has focused on replacing the income tax with a consumption-based tax, very few consumption-based direct tax reforms have been enacted. Much more common are approaches that reduce the level of capital-income taxation under an income tax, including the...

A five-state compartment model of trends in illicit drug use in Australia is parameterized using data from multiple sources. The model reproduces historical prevalence and supports what-if analyses under the assumption that past trajectories of drug escalation and desistance persist. For fixed...

We formulate a theoretical model in which we postulate that if a customers' behavior is perceived as not optimal, customers will adjust this behavior based on their current satisfaction and payment equity. Furthermore, customers will also include new experiences. In our empirical study we...

In this study we analyze the effect of thermal mass on space heating energy use and life cycle primary energy balances of a concrete- and a wood-frame building. The analysis includes primary energy use during the production, operation, and end-of-life phases. Based on hour-by-hour dynamic...

Polymer Electrolyte Membrane (PEM) fuel cells are regarded as an alternative power source for automotive and portable applications. Due to sensitivity of fuel cell to model parameters and nonlinear nature of the governing equations, proper control of the generated power is essential. In this...

An artificial neural network (ANN)-based dynamic model for an experimental variable speed direct expansion (DX) air conditioning (A/C) system has been developed, linking the indoor air temperature and humidity controlled by the DX A/C system with the variations of compressor and supply fan...

This new procedure of financial audit is based on the requirement that the model should be conceived in such a way that it can reflect in a simplified and accurate manner the approached economic reality.